package com.leyou.item.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.leyou.common.exception.LyException;
import com.leyou.item.dto.SpecParamDTO;
import com.leyou.item.entity.SpecParam;
import com.leyou.item.mapper.SpecParamMapper;
import com.leyou.item.service.SpecParamService;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class SpecParamServiceImpl extends ServiceImpl<SpecParamMapper, SpecParam> implements SpecParamService {


    @Override
    public List<SpecParamDTO> queryParams(Long categoryId, Long groupId, Boolean searching) {
//       健壮性判断
        if(categoryId == null && groupId == null){

//            条件不能都为空
            throw new LyException(400,"查询条件不能为空！");
        }

//        查询
        List<SpecParam> list = query()
                .eq(categoryId != null,"category_id",categoryId)
                .eq(groupId != null,"group_id",groupId)
                .eq(searching != null,"searching",searching)
                .list();

//        返回
        return SpecParamDTO.convertEntityList(list);
    }
}
